1,975 Answered Questions for the topic linear algebra

Linear Algebra

10/29/22

HELP ASAP THANKS
five yrs ago, a mother was 5 times older than her son. in 8 yrs time, the mother will be 3times older than her son. how old are the mother and her son?
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Linear Algebra Math Algebra 1 Algebra 2

10/29/22

Let be the line defined by the vector equation v= [-1 -1] + t[-2 2]. Find the equation y=mx+b for L .
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Linear Algebra

10/29/22

Let w, x, y, z be vectors and suppose z = 2x + y and w = 4x - y - 2z.
Let w, x, y, z be vectors and suppose z = 2x + y and w = 4x - y - 2z. Mark the statements below that must be true.A. Span(x, y)=Span(w) B. Span(y, w)= Span(z) C. Span(y) = Span(w) D. Span(x, y) =... more
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Linear Algebra

10/29/22

The vectors v=[4 -1 -5] , u=[-2 2 -15+k] and w= [-3 2 -5] are linearly independent if and only if k=/
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Linear Algebra

10/29/22

Solving a word problem with three unknowns using a linear equation

Mary, Henry and Chang served a total of 105 orders Monday at the school cafeteria. Mary served 9 more orders than Henry. Chang served 2 times as many orders as Henry. How many orders did they each... more
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Linear Algebra

10/27/22

Solving a distance, rate, time problem using a system of linear equations
Two buses leave towns 1841 kilometers apart at the same time and travel toward each other. One bus travels 9 kmh slower than the other. If they meet in 7 hours, what is the rate of each bus?
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Linear Algebra

10/27/22

Express the polynomial v = x 2 + 4x − 3 in P(x) as a linear combination of the polynomials p1(x) = x 2 − 2x + 5, p2(x) = 2x 2 − 3x and p3(x) = x + 1.
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Linear Algebra

10/26/22

Need help finding the linear equation

A local water park found that if the price of admission was $16 the attendance was about 2850 customers per week. When the price of admission was dropped to $10 attendance increased to about 3100... more
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Linear Algebra

10/24/22

In P3, let W = {f ∈ P3 | f (3) = f (2) + f (1)}. Find a basis for W and dim(W )
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Linear Algebra

10/24/22

What is the distance?
Public wheelchair ramps are required to adhere to a slope of 1:12. Which means that for every 1 inch of rise the horizontal run must be 12 inches. The vertical distance from the ground to the... more
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Linear Algebra

10/21/22

Construct a polynomial function of least degree
Construct a polynomial function of least degree possible using the given information.Real roots: −1, 1, 3 and (2, f(2)) = (2, 7)
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Linear Algebra Math

10/21/22

Complex Number Conditions
Find all the complex numbers z1, z2, z3 that satisfy the three following conditions simultaneously.|z1| = |z2| = |z3|z1 + z2 + z3 = 1z1z2z3 = 1I'm a high school student and this was the final... more
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Linear Algebra

10/20/22

find an equation for the line that passes through the points (-1,-5) and (5,-2)
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Linear Algebra

10/20/22

How to find basis and parameters ?
The subspace U={(x,y,z)∈R|x−ay=b,x−az=b} is given and I am having a trouble with finding its basis, dimension and the parameters a and b.
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Linear Algebra

10/19/22

Is the set of rational numbers with the usual definitions for addition and scalar multiplication a vector space? Explain
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Linear Algebra

10/17/22

linear system and solve
The sum of two integers is 62. The larger is 17 more than four times the smaller. Find the two integers.
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Linear Algebra

10/16/22

HI PLS HELP! ! !

The midpoint M of a line segment PQ has the coordinates (5, 4). If the coordinates of P are (1, -6), find the coordinates of Q.is there a certain formula to solve this? if so, please explain well... more
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Linear Algebra

10/13/22

Linear rotation

What is a 3 by 3 matrix that will rotate points 60 degrees around the points (-2,3)?
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Linear Algebra

10/13/22

9 numbers that have an average of 8
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Linear Algebra Math Algebra 1 Algebra 2

10/12/22

Suppose f(x) is a quadratic function with only one root at x=−5 and y-intercept (0,75). Write the equation for this function.
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Linear Algebra Algebra 1 Algebra 2 Calculus

10/12/22

Suppose f(x) is a quadratic function with only one root at x=2 and goes through the point (1,3). Write the equation for this function.
help.
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Linear Algebra

10/12/22

Find a linear function, f, given f(15)=0 and f(-5)=-4. Then find f(0).
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Linear Algebra Math Algebra 1 Algebra 2

10/12/22

f(x)=9(x+16)^2+13 Find f(3a+9)=
Help...I will give you a 5 star review if you show me how to do this problem.
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Linear Algebra

10/12/22

Formulate and solve systems of three linear equations in three variables using elimination

A farmer rotates wheat, corn, soybean crops on her farm. The farmer produces 293 bushels of produce and sells them for a total of $1557. Wheat costs $8 a bushel. Corn costs $4 a bushel. Soybeans... more
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Linear Algebra

10/12/22

Find the inverse of the function on the given domain.

f(x)=(x-1)^2, [1, infinity)I am looking for the inverse.f^1(x)=_____________________
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